The latest devices include the Yoga Book 2-in-1 tablet, the Yoga 910 2-in-1 laptop, a Yoga Tab 3 Plus tablet and a Miix 510 detachable. Lenovo launched its latest tablets, two-in-ones and laptop computer models on Aug. 31 at the IFA Consumer Electronics Unlimited conference in Berlin, including some with a choice of Windows or Android operating systems...